Seiko Cal. 4550 - 745

The 4550-745 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-3ebed6bc049d]

Also known as: Silverwave, Arnie

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1973

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