Seiko Cal. 6635 - 463

The 6635-463 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6635 caliber with 18j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-7836e51ef144]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1976

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