Seiko Cal. 0731 - 128

This Spring Drive model from 1976 features a 41mm Two-Tone case. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-c4fbf294d940]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1976

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