Seiko Cal. 0712 - 647

This Spring Drive model from 1972 features a 37mm Titanium case. With its 18mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-a3a0a77e9122]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1972

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