Seiko Cal. 6133 - 437

The 6133-437 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-8b4ac6dd15ac]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1981

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