Seiko Cal. 4488 - 690

The Seiko 4488-690 represents an important milestone in Seiko's 1979 lineup. Powered by the 4488 caliber with 28j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-9c60b425f212]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1979

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