Seiko Cal. 5240 - 520

The 5240-520 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-d1a4a20db47f]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1978

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