Seiko Cal. 6310 - 645

The Seiko 6310-645 represents an important milestone in Seiko's 1983 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-34dfa0b13375]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1983

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