Seiko Cal. 7031 - 506

The Seiko 7031-506 represents an important milestone in Seiko's 1997 lineup. Powered by the 7031 caliber with 19j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-dd3c16f2e18b]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1997

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