Seiko Cal. 5664 - 100

The Seiko 5664-100 represents an important milestone in Seiko's 1968 lineup. It features a Navy dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-7e6283f2a8ca]

Also known as: Navigator, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1968

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