Seiko Cal. 0763 - 837

Released in 1970, the Cal. 0763 with design code 837 was part of Seiko's domestic market collection. With its 19mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-7820ea74ae48]

Also known as: Sumo, Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1970

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