Seiko Cal. 3861 - 878

Seiko 3861-878

The 3861-878 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0b1388533aa0]

Also known as: Helmet, Golden Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
11.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
120m
Dial Color
Black
Jewels
19j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1990

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