Seiko Cal. 4550 - 502

The 4550-502 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-cd8ab428283e]

Also known as: Samurai, Monster

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1987

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