Seiko Cal. 5644 - 539

Released in 1994, the Cal. 5644 with design code 539 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-28a02eb98fb0]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1994

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