Seiko Cal. 5687 - 879

The 5687-879 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5687 caliber with 22j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-e091b48266bc]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1984

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