Seiko Cal. 3811 - 817

Seiko 3811-817

The Seiko 3811-817 represents an important milestone in Seiko's 1969 lineup. Powered by the 3811 caliber with 27j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-6c0ebc6acb3d]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
40mm
Case Thickness
11.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
27j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1969

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