Seiko Cal. 4548 - 731

This Spring Drive model from 1993 features a 39mm PVD Black case. Powered by the 4548 caliber with 22j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-15e7017519e8]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1993

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