Seiko Cal. 3897 - 442

Seiko 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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