Seiko Cal. 5644 - 337

The 5644-337 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5644 caliber with 32j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-f5d9445ea514]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1978

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