Click to inspect
Owners widely praise the Orient Kamasu for its excellent value, robust build quality suitable for daily wear, and attractive design featuring applied indices and a sunburst dial. Reviewers and owners consistently highlight its strong lume, hacking and hand-winding movement, sapphire crystal, and sub-42mm dimensions. Some owners note a rattle, a crown that can be hard to grip, and a bezel with noticeable play or a tendency to become sticky. The bracelet is frequently criticized for its hollow end links and pressed clasp, though opinions on its taper vary. Accuracy figures reported by owners range from approximately +15 seconds per day to more precise timekeeping. Overall, owners rate the Orient Kamasu highly for its impressive finishing and features at its price point.
4 Variants
Retail MSRP
$375
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Avg
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Static data
Case
41.8mm
Power Reserve
40h
Movement
Automatic
Water Resistance
200m
01
Case Dimensions
Diameter41.8mm
Thickness12.8mm
Lug-to-Lug47mm
Lug Width22mm
02
Case Build
MaterialStainless Steel
Water Resistance200m
03
Crystal & Dial
CrystalSapphire
Dial ColorBlack
04
Movement
Caliber
TypeAutomatic
Beat Rate21,600 vph (3.0Hz)
Power Reserve40 hours
Jewels22
HackingYes
Hand-WindingYes
ComplicationsDay-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 Orient Kamasu (ref. ra-aa0001b39b) is an automatic diver watch, with a 41.8mm stainless steel case, 12.8mm thick, powered by the F6922 movement and a 40-hour power reserve. Water resistance is rated to 200m, under a sapphire crystal, with day-date complications. Manufacturer MSRP is $375 and the secondary market averages around $278 (roughly 74% of MSRP).