Seiko Cal. 6633 - 291

The 6633-291 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-3c3e846ac9ac]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1967

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