Seiko Cal. 3865 - 680

Seiko 3865-680

The 3865-680 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-092904c03643]

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
39mm
Case Thickness
8.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1985

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seikata-wm-092904c03643