Seiko Cal. 3817 - 393

Seiko 3817-393

The Seiko 3817-393 represents an important milestone in Seiko's 1980 lineup. Powered by the 3817 caliber with 23j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-08dc5a5d6a10]

Also known as: Navigator, Sea Horse

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
41mm
Case Thickness
9.7mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1980

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