Seiko Cal. 3873 - 746

The Seiko 3873-746 represents an important milestone in Seiko's 1970 lineup. Powered by the 3873 caliber with 28j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-bccf069fa764]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1970

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