Seiko Cal. 3897 - 399

Seiko 3897-399

The 3897-399 is a sought-after Automatic piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-e620b3ebecea]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
10.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
White
Jewels
21j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1976

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