Seiko Cal. 6641 - 136

Released in 1969, the Cal. 6641 with design code 136 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-6bc3632fbd02]

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1969

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