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Ocean
3 Variants
Retail MSRP
$449
Low
—
Avg
—
High
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Static data
Case
40mm
Power Reserve
40h
Movement
Automatic
Water Resistance
300m
01
Case Dimensions
Diameter40mm
Thickness12.7mm
Lug-to-Lug—
Lug Width20mm
02
Case Build
MaterialStainless Steel
Water Resistance300m
03
Crystal & Dial
CrystalSapphire
Dial ColorBlack Dial Blue Bezel
04
Movement
Caliber
TypeAutomatic
Beat Rate4 vph (0.0Hz)
Power Reserve40 hours
Jewels—
HackingNo
Hand-WindingNo
ComplicationsGMT, Chronograph, Moonphase, Date
05
Design Language
Dial styleMatte
BezelRotating (dive)
Bracelet / strapLug-attached bracelet
HandsMercedes
AI-detected from product image · 5/22/2026
In a nutshell
The Sugess Ocean Star S421 (ref. S421) is an automatic diver watch, with a 40mm stainless steel case, 12.7mm thick, powered by the Seagull ST2130/Seiko NH35 movement and a 40-hour power reserve. Water resistance is rated to 300m, under a sapphire crystal, with gmt, chronograph, moonphase, date complications. Manufacturer MSRP is $449. The dial color is su116610lb black.