Seiko Cal. 5639 - 123

Released in 1972, the Cal. 5639 with design code 123 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-aa281cdb34af]

Also known as: UFO, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1972

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