Seiko Cal. 3860 - 923

Seiko 3860-923

The 3860-923 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-6db9c680165d]

Also known as: Crown, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
42mm
Case Thickness
10.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
30m
Dial Color
Black
Jewels
18j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1977

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