Seiko Cal. 5687 - 762

This Automatic model from 1965 features a 39mm Gold-Plated case. Powered by the 5687 caliber with 18j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-4122aa4256dc]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1965

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