Seiko Cal. 5611 - 187

This Automatic model from 1984 features a 40mm Hardlex-Coated Steel case. Powered by the 5611 caliber with 28j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-45521c72d617]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1984

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