Seiko Cal. 5639 - 455

The 5639-455 is a sought-after Quartz piece from Seiko's golden era. With its 18mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-cd0ccc21da7d]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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