Seiko Cal. 6661 - 743

Released in 1968, the Cal. 6661 with design code 743 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-40fda85da223]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1968

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