Seiko Cal. 5645 - 372

The 5645-372 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-6ed127bec8ff]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1969

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