Seiko Cal. 4557 - 361

This Spring Drive model from 1983 features a 34mm PVD Black case. Powered by the 4557 caliber with 29j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-9c1525221cce]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1983

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