Seiko Cal. 0770 - 556

The Seiko 0770-556 represents an important milestone in Seiko's 1987 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-98c1a22e605f]

Also known as: Pogue, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1987

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