Seiko Cal. 4488 - 318

This Spring Drive model from 1971 features a 36mm Titanium case. Powered by the 4488 caliber with 17j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-86f4a563aeb0]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

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