Seiko Cal. 4597 - 346

This Spring Drive model from 1976 features a 40mm Stainless Steel case. With its 21mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-b53f4ba2f573]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1976

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