Seiko Cal. 5687 - 750

This Quartz model from 1983 features a 35mm Titanium case. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-91efa0f07c41]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1983

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