Seiko Cal. 6240 - 437

Released in 1970, the Cal. 6240 with design code 437 was part of Seiko's domestic market collection. With its 20mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-7ec6bf91240b]

Also known as: Turtle, Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1970

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