Seiko Cal. 5227 - 240

The 5227-240 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-af6ac891e3cd]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1970

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