Seiko Cal. 7133 - 336

This Spring Drive model from 1982 features a 36mm PVD Black case. Powered by the 7133 caliber with 31j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-0c6ef4bd4dee]

Also known as: Monster, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1982

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