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CK2998 vs 310.30.42.50.01.001

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Specification

Omega

CK2998

Speedmaster Professional Moonwatch

Omega

310.30.42.50.01.001

Speedmaster Professional Moonwatch

Production1959–19622021–present
EraFirst in spaceCaliber 3861 (sapphire)
Statusdiscontinuedcurrent
MSRP$7,600 (2023, sapphire sandwich)
Case diameter40mm42mm
Case materialStainless steelStainless steel
BezelTachymeterTachymeter
Bezel materialBlack aluminiumBlack aluminium (anodised)
CrystalAcrylic (Hesalite)Sapphire (sapphire caseback)
Caseback typeDisplay (sapphire)
Water resistance60m50m
DialBlackBlack (step dial)
Hour markersApplied Omega logo
HandsAlpha handsStraight (baton)
LumeTritiumSuper-LumiNova
Lume typeTritiumSuper-LumiNova
MovementManual chronographManual chronograph
Caliber3213861
ManufacturerOmega (Lemania base)Omega
Windingmanualmanual
Power reserve~50 hours
Frequency21,600 vph
ComplicationsChronograph, tachymeterChronograph, tachymeter
FunctionsChronograph, tachymeter