Seiko Cal. 6221 - 777

The Seiko 6221-777 represents an important milestone in Seiko's 1971 lineup. Powered by the 6221 caliber with 27j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-e03b918746cb]

Also known as: Monster, World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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