Seiko Cal. 6240 - 909

Released in 1974, the Cal. 6240 with design code 909 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-56ce2ebc28ee]

Also known as: Tuna, Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1974

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