Seiko Cal. 4550 - 480

Released in 1975, the Cal. 4550 with design code 480 was part of Seiko's domestic market collection. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-c68d223ac6de]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1975

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