Seiko Cal. 6377 - 818

Released in 1980, the Cal. 6377 with design code 818 was part of Seiko's domestic market collection. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-85fb977ed6a4]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1980

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