Seiko Cal. 3817 - 565

Seiko 3817-565

The 3817-565 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a221a08cdc43]

Also known as: Sumo, Navigator

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
13.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Cream
Jewels
24j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1974

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