Seiko Cal. 5693 - 648

This Solar model from 1970 features a 37mm Titanium case. With its 18mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-386e5b29a60e]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1970

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