Seiko Cal. 6633 - 761

The 6633-761 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6633 caliber with 30j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-0c624810f8ce]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1973

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