Seiko Cal. 5640 - 835

The 5640-835 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-7f1fa0889e38]

Also known as: Turtle, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1999

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