Seiko Cal. 6634 - 910

Released in 1978, the Cal. 6634 with design code 910 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-4a64ffdc5ca2]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1978

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