Seiko Cal. 5641 - 686

The Seiko 5641-686 represents an important milestone in Seiko's 1989 lineup. Powered by the 5641 caliber with 22j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-17275cfa81dd]

Also known as: Bellmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1989

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