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Seestern
2 Variants
Lume:Super-LumiNova BGW9
Retail MSRP
$399
Low
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Avg
—
High
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Static data
Case
38mm
Power Reserve
35h
Movement
Manual
Water Resistance
50m
01
Case Dimensions
Diameter38mm
Thickness13mm
Lug-to-Lug48.6mm
Lug Width13mm
02
Case Build
MaterialStainless Steel
Water Resistance50m
03
Crystal & Dial
CrystalSapphire
Dial ColorBlack ST19 Lumed
LumeSuper-LumiNova BGW9
04
Movement
Caliber
TypeManual
Beat Rate3 vph (0.0Hz)
Power Reserve35 hours
Jewels—
HackingNo
Hand-WindingYes
ComplicationsGMT, Chronograph, Moonphase, Date
05
Design Language
Dial styleMatte
Sub-dials2
BezelRotating (dive)
Bracelet / strapRubber strap
HandsBaton
AI-detected from product image · 5/22/2026
In a nutshell
The Sugess Seestern Chrono S443/S445 (ref. S443/S445) is a manual chronograph watch, with a 38mm stainless steel case, 13mm thick, powered by the Seagull ST19 movement and a 35-hour power reserve. Water resistance is rated to 50m, under a sapphire crystal, with gmt, chronograph, moonphase, date complications. Manufacturer MSRP is $399.