Seiko Cal. 7040 - 284

The 7040-284 is a sought-after Solar piece from Seiko's golden era. Powered by the 7040 caliber with 33j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-fa429acb4c6e]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1968

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