Seiko Cal. 3861 - 538

Seiko 3861-538

The 3861-538 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-4a3a5ae6b233]

Also known as: Bullhead, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
8.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Black
Jewels
27j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1972

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