Seiko Cal. 0734 - 816

This Spring Drive model from 1966 features a 40mm Stainless Steel case. With its 22mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-7c15b067929a]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1966

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