Seiko Cal. 6633 - 184

The Seiko 6633-184 represents an important milestone in Seiko's 1972 lineup. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-074dcb45aeaa]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1972

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