Seiko Cal. 3817 - 445

Seiko 3817-445

The 3817-445 is a sought-after Automatic piece from Seiko's golden era. With its 22mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-b0edd420012e]

Also known as: Monster, Sumo

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
11.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Navy
Jewels
26j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1980

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