Seiko Cal. 5685 - 671

This Hand-Winding model from 1982 features a 36mm Two-Tone case. Powered by the 5685 caliber with 31j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-c5843b2d0547]

Also known as: Bullhead, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1982

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