Seiko Cal. 4550 - 192

The Seiko 4550-192 represents an important milestone in Seiko's 1974 lineup. With its 20mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-84b6669bc5a4]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1974

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