Seiko Cal. 0770 - 789

The 0770-789 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0770 caliber with 25j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-8d4d289cffe3]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1975

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