Seiko Cal. 3897 - 908

The 3897-908 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3897 caliber with 34j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-c6db9c03e8de]

Also known as: UFO, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1965

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