Seiko Cal. 5621 - 813

The Seiko 5621-813 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-7290333ac28c]

Also known as: Helmet, Silverwave

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1971

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