Seiko Cal. 6633 - 757

This Quartz model from 1975 features a 40mm Titanium case. Powered by the 6633 caliber with 28j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-a81c09f3621f]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1975

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