Seiko Cal. 5677 - 763

The 5677-763 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5677 caliber with 31j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-337e6056ecef]

Also known as: Bullhead, Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1966

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