Seiko Cal. 6632 - 363

The Seiko 6632-363 represents an important milestone in Seiko's 1978 lineup. With its 19mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-b87df8a289b7]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1978

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