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6139-6000 vs 6139-6005
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| Specification | ||
|---|---|---|
| Nickname | — | Pogue |
| Production | 1969–1970 | 1969–1978 |
| Era | First-series 6139-600x | North American market 600x |
| Status | discontinued | discontinued |
| Case diameter | 41mm | 41mm |
| Case material | Stainless steel | Stainless steel |
| Construction | Barrel case with integrated bezel surround | Barrel case, crown at 4 |
| Bezel | Internal rotating tachymeter, operated by the crown at 4 | Internal rotating tachymeter |
| Crystal | Hardlex | Hardlex |
| Crown | Push-pull crown at 4; chronograph pushers at 2 and 4 | Push-pull crown at 4; pushers at 2 and 4 |
| Caseback | Screw-down, stamped case number and six-character serial | — |
| Water resistance | 70m (dial-marked) | 70m (dial-marked) |
| Dial | Blue, silver or yellow depending on variant | Yellow (Pogue), blue, or silver |
| Dial text | SEIKO / CHRONOGRAPH AUTOMATIC / WATER 70m PROOF (early) | SEIKO / AUTOMATIC / 17 JEWELS / WATER 70m RESIST |
| Hands | Baton hour and minute, straight chronograph seconds | — |
| Lume | Tritium | Tritium |
| Movement | Automatic chronograph | Automatic chronograph |
| Caliber | 6139A / 6139B | 6139B |
| Manufacturer | Seiko (Suwa Seikosha) | Seiko (Suwa Seikosha) |
| Winding | automatic | automatic |
| Frequency | 21,600 vph | 21,600 vph |
| Complications | Chronograph (30-minute totaliser), day-date | Chronograph (30-minute totaliser), day-date |
| Functions | Chronograph, day-date, internal tachymeter | — |
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