Seiko Cal. 6240 - 863

This Spring Drive model from 1977 features a 45mm Stainless Steel case. Powered by the 6240 caliber with 31j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-47270e881f0f]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1977

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