Seiko Cal. 5620 - 221

The Seiko 5620-221 represents an important milestone in Seiko's 1987 lineup. Powered by the 5620 caliber with 36j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-3fa1249e7fcf]

Also known as: Helmet, Silverwave

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1987

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