Seiko Cal. 3897 - 515

The 3897-515 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3897 caliber with 28j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-20727bf4cef3]

Also known as: Tuna, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1991

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