Seiko Cal. 5638 - 726

The 5638-726 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-f6377ed181bc]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1981

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