Seiko Cal. 6240 - 310

The 6240-310 is a sought-after Solar piece from Seiko's golden era. Powered by the 6240 caliber with 31j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-b0ccc43d8de5]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1995

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