Seiko Cal. 4512 - 637

This Hand-Winding model from 1982 features a 35mm PVD Black case. Powered by the 4512 caliber with 35j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-14abcebb3f3a]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1982

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