Seiko Cal. 5699 - 365

This Spring Drive model from 1971 features a 44mm Hardlex-Coated Steel case. With its 19mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-06d385b4f576]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1971

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