Seiko Cal. 5242 - 864

The 5242-864 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5242 caliber with 29j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-d97b9a1fadc5]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

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