Seiko Cal. 7138 - 773

This Hand-Winding model from 1990 features a 37mm Two-Tone case. With its 19mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-6fbadcc84a89]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1990

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