Seiko Cal. 3871 - 725

Seiko 3871-725

The 3871-725 is a sought-after Automatic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-49f8c9a4bdd2]

Also known as: Samurai, Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
11.9mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
27j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1978

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