Seiko Cal. 3897 - 147

The 3897-147 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3897 caliber with 30j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-3d0309a924bc]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1975

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