Seiko Cal. 7140 - 798

This Hand-Winding model from 1975 features a 38mm Stainless Steel case. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-bd7716ffcb8f]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1975

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