Seiko Cal. 6187 - 731

The Seiko 6187-731 represents an important milestone in Seiko's 1985 lineup. Powered by the 6187 caliber with 21j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-1f4e6c2731d9]

Also known as: Panda, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1985

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