Seiko Cal. 0770 - 344

This Quartz model from 1981 features a 40mm Stainless Steel case. Powered by the 0770 caliber with 20j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-52d6c456a2e1]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1981

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