Seiko Cal. 6331 - 744

The Seiko 6331-744 represents an important milestone in Seiko's 1965 lineup. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-1140e63f24f9]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1965

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