Seiko Cal. 6310 - 462

Released in 1970, the Cal. 6310 with design code 462 was part of Seiko's domestic market collection. With its 21mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-42cdfaa47fb8]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

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