Seiko Cal. 3817 - 488

Seiko 3817-488

The Seiko 3817-488 represents an important milestone in Seiko's 1984 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-4b5f467a4b87]

Also known as: Sumo, Flighty

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
50m
Dial Color
Navy
Jewels
27j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1984

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