Seiko Cal. 4550 - 835

The Seiko 4550-835 represents an important milestone in Seiko's 1975 lineup. With its 19mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-5781e51f89f8]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1975

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