Seiko Cal. 6648 - 741

Released in 1969, the Cal. 6648 with design code 741 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-b2d4f74f968c]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1969

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