Seiko Cal. 6131 - 694

Seiko 6131-694

The 6131-694 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6131 caliber with 26j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-e007cbe0ca8f]

Also known as: Bullhead

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
46mm
Case Thickness
11.3mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
90m
Dial Color
Cream
Jewels
26j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1979

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