Seiko Cal. 6310 - 364

Released in 1978, the Cal. 6310 with design code 364 was part of Seiko's domestic market collection. With its 19mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-5e411dbda7eb]

Also known as: Sumo, Arnie

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1978

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