Seiko Cal. 3891 - 792

The Seiko 3891-792 represents an important milestone in Seiko's 1975 lineup. Powered by the 3891 caliber with 23j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-9c6fd5d144bd]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1975

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