Seiko Cal. 3881 - 528

This Quartz model from 1969 features a 38mm Stainless Steel case. Powered by the 3881 caliber with 20j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-186273b5d3ac]

Also known as: Monster, Shogun

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1969

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