Seiko Cal. 3897 - 985

The 3897-985 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3897 caliber with 34j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-7870bdcdd45e]

Also known as: Pogue, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1975

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