Seiko Cal. 6377 - 557

Released in 1989, the Cal. 6377 with design code 557 was part of Seiko's domestic market collection. Powered by the 6377 caliber with 32j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-23f0975b760f]

Also known as: UFO, Rally

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1989

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