Seiko Cal. 6240 - 780

This Quartz model from 1981 features a 44mm Two-Tone case. Powered by the 6240 caliber with 31j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-a6f3fde00c10]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1981

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