Seiko Cal. 6634 - 610

The 6634-610 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-3df93480fc94]

Also known as: Sumo, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

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