Seiko Cal. 6639 - 913

The 6639-913 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-64305879bcd5]

Also known as: Arnie, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1973

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