Seiko Cal. 6321 - 507

Released in 1996, the Cal. 6321 with design code 507 was part of Seiko's domestic market collection. With its 18mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-44993d7a5cde]

Also known as: Tuna, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1996

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