Seiko Cal. 4551 - 657

This Hand-Winding model from 1973 features a 45mm PVD Black case. Powered by the 4551 caliber with 25j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-5faac6429b71]

Also known as: Monster, Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1973

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