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16550 vs 226570

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Specification

Rolex

16550

Explorer II

Rolex

226570

Explorer II

Production1985–19892021–present
EraSapphire transition42mm current
Statusdiscontinuedcurrent
Case diameter40mm42mm
Lug width20mm
Case materialStainless steelOystersteel
Construction42mm with slimmer, better-proportioned lugs than the 216570
BezelFixed 24-hour, engraved steelFixed 24-hour, engraved steel
Bezel materialStainless steelOystersteel
CrystalSapphireSapphire
CrownTwinlock screw-downTwinlock screw-down
Caseback typeSolid screw-down steelSolid screw-down steel
Water resistance100m100m
DialWhite (Polar) or blackWhite (Polar) or black
Dial configuration3-6-9 with white-gold-surround markers; independent orange 24h handLarger 24h bezel numerals; independent orange 24h hand
HandsMercedes + independent orange 24hMercedes + independent orange 24h
LumeTritiumChromalight
Lume typeTritiumChromalight (blue, long-lasting)
MovementAutomaticAutomatic
Caliber30853285
ManufacturerRolexRolex
Windingautomaticautomatic
Power reserve~48 hours~70 hours
Frequency28,800 vph28,800 vph
Jewels2731
FunctionsHours, minutes, seconds, date, independent 24hHours, minutes, seconds, date, independent 24h
BraceletOysterOyster
Bracelet materialStainless steelOystersteel
Bracelet reference78360
End links580Solid
ClaspOysterlock safety clasp with Easylink 5mm comfort extension

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