Seiko Cal. 0770 - 285

The 0770-285 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0770 caliber with 21j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-491a0fa2fe80]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1981

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