Seiko Cal. 5698 - 850

This Spring Drive model from 1967 features a 36mm Stainless Steel case. Powered by the 5698 caliber with 20j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-d8c1be44f19c]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

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