Seiko Cal. 3854 - 647

The Seiko 3854-647 represents an important milestone in Seiko's 1972 lineup. Powered by the 3854 caliber with 30j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-eb34a71906db]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1972

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