Seiko Cal. 5278 - 509

The 5278-509 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-6acb44250ace]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1983

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