Seiko Cal. 3811 - 640

Seiko 3811-640

The 3811-640 is a sought-after Solar piece from Seiko's golden era. With its 22mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-b7e0ed798c37]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
36mm
Case Thickness
13.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Burgundy
Jewels
34j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1981

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