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16660 vs 126600

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Specification

Rolex

16660

Sea-Dweller

Triple Six

Rolex

126600

Sea-Dweller

SD43

NicknameTriple SixSD43
Production1983–19882017–present
EraSapphire transition43mm, Cyclops added
Statusdiscontinuedcurrent
Case diameter40mm43mm
Case materialStainless steelOystersteel
BezelUnidirectional 60-minuteUnidirectional 60-minute Cerachrom
Bezel materialAluminium insertCeramic (Cerachrom)
CrystalSapphire (no Cyclops)Sapphire with Cyclops
CrownTriplock; helium escape valveTriplock; helium escape valve
Caseback typeScrew-down solid
Water resistance1220m1220m
DialBlackBlack
Dial configurationMatte then glossy with white-gold surroundsRed 'Sea-Dweller' text (50th-anniversary revival)
HandsMercedes handsMaxi Mercedes hands
LumeTritiumChromalight
Lume typeTritiumChromalight
MovementAutomaticAutomatic
Caliber30353235
ManufacturerRolexRolex
Windingautomaticautomatic
Power reserve~70 hours
FunctionsHours, minutes, seconds, dateHours, minutes, seconds, date
BraceletOyster with Glidelock
Bracelet materialOystersteel