Seiko Cal. 4550 - 419

This Hand-Winding model from 1977 features a 44mm PVD Black case. Powered by the 4550 caliber with 28j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-cd924ee50009]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1977

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