Seiko Cal. 0770 - 456

The 0770-456 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0770 caliber with 27j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-23054594ac43]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1981

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