Seiko Cal. 5690 - 570

The 5690-570 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-41256be71256]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1981

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