Seiko Cal. 6634 - 367

The 6634-367 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-aee488fcd432]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1976

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