Seiko Cal. 5687 - 692

The 5687-692 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5687 caliber with 18j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-68a39ecd3d4f]

Also known as: Sumo, Pogue

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1982

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