Seiko Cal. 3811 - 587

This Quartz model from 1985 features a 38mm Stainless Steel case. Powered by the 3811 caliber with 29j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-28a856c4a7b5]

Also known as: Tuna, Helmet

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1985

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