Seiko Cal. 4425 - 355

This Hand-Winding model from 1977 features a 37mm PVD Black case. Powered by the 4425 caliber with 33j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-ce82143c4ac1]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1977

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