Seiko Cal. 5221 - 843

The Seiko 5221-843 represents an important milestone in Seiko's 1965 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-525312753c8c]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1965

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