Seiko Cal. 5240 - 835

The 5240-835 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-a64f9f60009f]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1971

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