Seiko Cal. 4431 - 645

The 4431-645 is a sought-after Kinetic piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-9d52ba4c724b]

Also known as: Navigator, Emperor

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1993

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