Seiko Cal. 6634 - 263

The Seiko 6634-263 represents an important milestone in Seiko's 1969 lineup. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-a6efa38dbc6d]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1969

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