Seiko Cal. 0777 - 840

The Seiko 0777-840 represents an important milestone in Seiko's 1990 lineup. It features a Silver dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-7fe444300875]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1990

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