Seiko Cal. 6311 - 743

The Seiko 6311-743 represents an important milestone in Seiko's 1965 lineup. It features a Black dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-478fb560fe94]

Also known as: Helmet, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1965

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