Seiko Cal. 3837 - 660

Seiko 3837-660

The 3837-660 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3837 caliber with 21j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-6031d5edeb49]

Also known as: Turtle, Helmet

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
42mm
Case Thickness
13.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
190m
Dial Color
Green
Jewels
21j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1995

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seikata-wm-6031d5edeb49