Seiko Cal. 4488 - 431

The Seiko 4488-431 represents an important milestone in Seiko's 1968 lineup. Powered by the 4488 caliber with 27j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-d557de1a6928]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1968

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