Seiko Cal. 4550 - 540

Released in 1985, the Cal. 4550 with design code 540 was part of Seiko's domestic market collection. With its 22mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-de4435acd581]

Also known as: Pogue, Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1985

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