Seiko Cal. 3873 - 636

Seiko 3873-636

The 3873-636 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-1afa46bc9ee1]

Also known as: Tuna, Bullhead

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
14.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
White
Jewels
18j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1998

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