Seiko Cal. 3812 - 487

Seiko 3812-487

The 3812-487 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-bc8d23c26e81]

Also known as: Sumo, Bullhead

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
42mm
Case Thickness
8.9mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Burgundy
Jewels
22j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1993

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