Seiko Cal. 5648 - 506

The 5648-506 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5648 caliber with 28j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-378095a09166]

Also known as: Helmet, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1996

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