Seiko Cal. 0747 - 131

The Seiko 0747-131 represents an important milestone in Seiko's 1990 lineup. Powered by the 0747 caliber with 28j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-86b4ef12e31a]

Also known as: Sumo, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1990

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