Seiko Cal. 5683 - 504

The 5683-504 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-e25f0b8c67a1]

Also known as: UFO, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1968

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