Seiko Cal. 3897 - 442

The 3897-442 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3897 caliber with 28j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-fa9ea00c7ae8]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1990

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