Seiko Cal. 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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