Seiko Cal. 5641 - 807

The 5641-807 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5641 caliber with 34j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-1710889da8ce]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1974

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