Seiko Cal. 3854 - 748

The Seiko 3854-748 represents an important milestone in Seiko's 1968 lineup. Powered by the 3854 caliber with 31j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-a2f4e9ae2e87]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1968

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