Seiko Cal. 4463 - 845

This Spring Drive model from 1972 features a 40mm Gold-Plated case. Powered by the 4463 caliber with 19j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-37eeacb07fa8]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1972

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