Seiko Cal. 3870 - 977

Seiko 3870-977

The 3870-977 is a sought-after Automatic piece from Seiko's golden era. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-3280bfdf4d1d]

Also known as: Samurai, Monster

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
12.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
90m
Dial Color
Black
Jewels
23j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1999

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