Seiko Cal. 3891 - 379

The Seiko 3891-379 represents an important milestone in Seiko's 1966 lineup. Powered by the 3891 caliber with 23j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-675677d41b52]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1966

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