Seiko Cal. 6648 - 937

Released in 1974, the Cal. 6648 with design code 937 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-fb525213ebb6]

Also known as: UFO, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1974

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