Seiko Cal. 3837 - 240

Seiko 3837-240

The 3837-240 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3837 caliber with 34j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-ac4a8e6cd012]

Also known as: Bellmatic

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
39mm
Case Thickness
13.3mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
170m
Dial Color
Black
Jewels
34j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1988

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