Seiko Cal. 4550 - 854

This Spring Drive model from 1998 features a 37mm PVD Black case. Powered by the 4550 caliber with 34j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-c6adaf1a3fb7]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1998

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