Seiko Cal. 5240 - 558

The 5240-558 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-35083fbece3c]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1969

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