Seiko Cal. 6681 - 788

The Seiko 6681-788 represents an important milestone in Seiko's 1965 lineup. Powered by the 6681 caliber with 18j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-df50493dc1b7]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1965

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