Seiko Cal. 6310 - 512

Released in 1967, the Cal. 6310 with design code 512 was part of Seiko's domestic market collection. With its 21mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-f42640df4cfa]

Also known as: Sumo, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1967

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