Seiko Cal. 6640 - 153

The 6640-153 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-0f8485493b0f]

Also known as: Goldfeather, Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1995

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