Seiko Cal. 3817 - 387

Seiko 3817-387

The 3817-387 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-aaaa6542811b]

Also known as: Bullhead, Rally

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
10.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
White
Jewels
17j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1985

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