Seiko Cal. 7131 - 899

The Seiko 7131-899 represents an important milestone in Seiko's 1967 lineup. Powered by the 7131 caliber with 31j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-241db377eec4]

Also known as: Monster, Goldfeather

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1967

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