Seiko Cal. 3891 - 146

The Seiko 3891-146 represents an important milestone in Seiko's 1973 lineup. Powered by the 3891 caliber with 25j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-979df84902ef]

Also known as: Helmet, Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1973

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