Seiko Cal. 5635 - 686

The Seiko 5635-686 represents an important milestone in Seiko's 1977 lineup. Powered by the 5635 caliber with 17j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-18c0e3aa1e6c]

Also known as: Rally, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1977

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