Seiko Cal. 6639 - 546

The Seiko 6639-546 represents an important milestone in Seiko's 1987 lineup. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-645934f8bad2]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1987

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