Authentication Standards

Vostok · Komandirskie · Ref. Soviet MoD issue

'ЗАКАЗ МО СССР' (Zakaz MO SSSR — 'By order of the USSR Ministry of Defense') identifies a genuine military-order Komandirskie sold via voentorg. Its PRESENCE supports a military-order provenance; its ABSENCE does NOT indicate a fake, because civilian and export models never carried it.

Yema · Superman · Ref. Superman (1963)

Yema supplied French forces and issued watches carry issue markings on the caseback. As with every issue marking in this catalog, it identifies the contract rather than the individual watch, it commands a premium, and it sits on a component that unscrews. Judge the case, dial, hands and movement as a system and see whether they belong to the same period as the marking.

Mido · Commander · Ref. Commander (monocoque)

A genuine monocoque Commander has an integral case base with no seam, no notches and nothing to unscrew. Counterfeits and rebuilt watches are frequently built on conventional cases, so the PRESENCE of a separable back on a watch presented as a monocoque Commander is what should be reported. This inverts the usual expectation and is the fastest check on the model.

Rado · True Square · Ref. True Square (monobloc ceramic platform)

A monobloc ceramic case is one piece. There is nothing to unscrew and no caseback seam. Counterfeits built on conventional cases routinely have one, so the PRESENCE of a screw-back on a watch specified as monobloc is the finding — the reverse of the usual expectation.

Hamilton · US Government Specification Field Watch · Ref. GG-W-113

A genuine issued caseback carries the specification, a stock or part number, a contract number and a date, stamped rather than laser-etched, with the shallow and slightly uneven depth of period tooling. Reproduction casebacks exist and are usually too clean: uniform character depth, a modern typeface, and often a plausible-looking contract number that does not correspond to a real contract period. The date and the contract must agree with each other and with the specification's own production window.

Omega · Speedmaster Professional Moonwatch · Ref. 145.022

Casebacks carry the seahorse hippocampus and 'The First Watch Worn on the Moon / Flight-Qualified by NASA' text; wording evolved over the run and should match the period.

Seiko · Bell-Matic · Ref. 4006-7000

The alarm hammer strikes a pin in the caseback. A replacement caseback from a different Bell-Matic reference may fit and seal while muting or altering the alarm. When assessing alarm function, confirm the caseback is the correct part before attributing the fault to the movement.

Bulova · Accutron · Ref. Accutron 214

Bulova stamped a date code on the caseback: a letter for the decade with a digit for the year within it — L for the 1950s, M for the 1960s, N for the 1970s, so M7 is 1967 and N0 is 1970. It is beside the serial number. This is one of the better dating systems available on an American watch of the period and it is on the outside of the watch.

Hamilton · US Government Specification Field Watch · Ref. MIL-W-46374

Each revision changed something checkable. A (1968): plastic cases by Westclox and Benrus from 1970 to 1976, metal by Hamilton. B (1975): introduced the radiation symbol and H3 on the DIAL for tritium, 'Dispose Rad. Waste' on the CASEBACK, and a protective coating on the hands. C (1983): admitted Stocker & Yale. D (1986): five variants including the higher-specification Type 1, a deliberate departure from the disposable plastic watches, made by Hamilton, Stocker & Yale and rarely Marathon/Gallet. E (1989): drastically changed dial fonts and replaced tritium PAINT with tritium VIALS, in plastic cases by Stocker & Yale and Marathon. This gives an examiner a two-way check: a watch marked Rev A carrying H3 and the radiation trefoil is inconsistent, because those markings arrived with Rev B in 1975 — and a Rev E dial should carry tritium vials rather than painted lume.

Certina · DS Concept · Ref. DS (1959 original)

The turtle is not a brand logo applied for decoration; it marks a watch as built to the DS specification. So it makes a claim that the rest of the watch can either support or contradict — the movement should sit in a shock-absorbing mount, the crystal should be noticeably thick, and the case should be gasketed accordingly. A turtle on a watch with none of that indicates a replaced caseback or a watch assembled from parts. Note the date boundary: a genuine DS watch made before the end of 1960 may correctly have no turtle at all.

Seiko · Chronograph 6139 · Ref. 6139-6002

Yellow-dial 6139-6000, -6002, -6005 and -6009 examples are all commonly sold as 'the Pogue'. Any listing that presents one reference as uniquely the astronaut's watch is overstating: the watch flown on Skylab 4 was a 6139-6005. Treat the nickname as a description of the dial and price the reference and configuration on their own evidence.

Seiko · 7002 Diver · Ref. 7002-7000

Dials, hands, bezels and crystals move between the two families readily. A 7002 case fitted with an SKX day-date dial cannot be original — the 7002A has no day complication — and is the easiest version of this mismatch to catch. Check that the dial's calendar layout matches the movement's capability before anything else.

Hamilton · US Government Specification Field Watch · Ref. GG-W-113

Because the caseback carries the valuable part of the identity and it unscrews, the frequent construction is a genuine issued caseback fitted to a civilian case, or a genuine case rebuilt with a replacement dial and hands. Judge the watch as a system: case finish, dial printing, hand style, movement and caseback all have to belong to the same contract period. Any one of them in isolation proves very little.

Universal Genève · Compax · Ref. 885103

A sixty-year-old watch ages as a system. Lume on the dial and lume on the hands were applied at the same time from the same material and should have gone the same colour; the case should show wear consistent with a watch whose dial has aged that far. The characteristic tell on a transplanted or reproduction dial is inconsistency — a dial with even, warm patina under hands whose lume is grey or white, or a crisp dial in a heavily worn case. Judge the relationships, not the individual parts.

Seiko · Astron · Ref. 35SQ Astron

Very few examples exist and the historical stakes are high. Specification comparison against other listings is close to worthless here, because the population of listings is small enough to be dominated by any single misdescribed watch. Direct enquiry to Seiko's corporate archive or museum is the appropriate route, and its absence should be stated as a limitation of any assessment.

Hamilton · Railway Special · Ref. 992B

Hamilton sold the movement; the buyer chose the case, frequently from Wadsworth, Keystone or another case company. A 992B in a non-Hamilton case is correct and expected. Treating a case-maker mismatch as evidence of a marriage would condemn most genuine railroad watches in existence.

Seiko · SKX / 5 Sports Diver Style · Ref. SKX007

Misaligned chapter rings are common on factory-original SKX watches and are a known characteristic of the price point, not an indicator of tampering. Alignment is useful evidence only in the other direction: a perfectly aligned chapter ring in a watch showing other signs of disassembly may indicate careful reassembly rather than originality.

Bulova · Accutron · Ref. Accutron Spaceview

Bulova produced Spaceviews as specific catalogued models, and the collector community — principally through the Bulova collector databases built from period catalogues — maintains lists of which models were factory Spaceviews. A watch whose case and model do not appear on those lists, but which has no dial, was very probably converted. This is the practical test, and it is a documentary one rather than a physical one.

Montblanc · Star Legacy · Ref. Star Legacy

Several Montblanc collections contain both volume watches on outside movements and low-volume Minerva pieces. The collection name therefore carries no information about what should be inside, and any expectation formed from it will be wrong roughly half the time. Read the reference and the caliber, not the collection.

Universal Genève · Compax · Ref. Tri-Compax

A complete calendar with moonphase is mechanically demanding and frequently non-functional on survivors, and non-functioning complications are sometimes concealed by fixing the discs in a plausible position. Set the watch through a full cycle: the day, month, date and moon should advance correctly and together. A calendar that does not move is a service question; one that moves incorrectly may indicate a movement assembled from parts of different calibers.

Bulova · Accutron · Ref. Accutron 218

A 214 is set from the caseback and has no side crown; a 218 has a crown at four. A watch with a side crown containing a 214, or a caseback-set watch containing a 218, has been rebuilt from mixed parts. The cases are not interchangeable between the generations and the combination is a finding.

Hamilton · American-Era Named Wristwatch · Ref. Boulton

The Boulton ran long enough that dial and hand configurations correct at the start of production are wrong at the end. The movement serial number gives an approximate production year through the published Hamilton serial lists; only once that is established can the dial be assessed. Judging the dial first and inferring the date from it reasons in a circle.

Seiko · Chronograph 6139 · Ref. 6139-6000

'Proof' on the dial with 'Resist' on the caseback (or the reverse) means one of the two has been replaced. That is usually a service dial and is an originality finding, not evidence of a counterfeit — but it should be recorded, because the same mismatch is what a parts watch assembled from two donors also produces.

Tissot · PRX · Ref. Seastar PRX (1978)

The original is a thin quartz watch with period case finishing, a mineral or acrylic crystal and no Powermatic anything. Nearly every check that works on the modern watch is inapplicable, and applying them produces false findings. The two share a silhouette; treat them as unrelated watches that happen to look alike.