Seiko Cal. 6634 - 186

The Seiko 6634-186 represents an important milestone in Seiko's 1979 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-1cbf732ca135]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1979

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