Seiko Cal. 0770 - 857

The Seiko 0770-857 represents an important milestone in Seiko's 1999 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-6b3a708bc1dc]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1999

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