Seiko Cal. 6331 - 245

Released in 1975, the Cal. 6331 with design code 245 was part of Seiko's domestic market collection. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c5ade07ea613]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1975

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