Seiko Cal. 0740 - 935

This Spring Drive model from 1973 features a 42mm Hardlex-Coated Steel case. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-07a414b153c9]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1973

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