Seiko Cal. 0771 - 900

The 0771-900 is a sought-after Quartz piece from Seiko's golden era. Powered by the 0771 caliber with 31j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-cc8c969d937f]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1987

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