Seiko Cal. 3813 - 773

Seiko 3813-773

The Seiko 3813-773 represents an important milestone in Seiko's 1988 lineup. Powered by the 3813 caliber with 36j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-dfbb4c5b4ca9]

Also known as: Tuna, UFO

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
38mm
Case Thickness
10.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
180m
Dial Color
Green
Jewels
36j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1988

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