Seiko Cal. 3866 - 731

Seiko 3866-731

The 3866-731 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-50a58429dcc4]

Also known as: Goldfeather, Crown

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
9.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Black
Jewels
29j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1995

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