Seiko Cal. 5642 - 669

The 5642-669 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5642 caliber with 28j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-9d9f906f2c5f]

Also known as: Silverwave, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1987

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