Seiko Cal. 5690 - 828

The 5690-828 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5690 caliber with 32j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-79cc010317d1]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1975

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