Seiko Cal. 3873 - 621

The Seiko 3873-621 represents an important milestone in Seiko's 1981 lineup. Powered by the 3873 caliber with 23j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-90a1d902ea46]

Also known as: Helmet, Rally

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1981

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