Seiko Cal. 6639 - 383

The Seiko 6639-383 represents an important milestone in Seiko's 1998 lineup. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-4b58e7af7fc5]

Also known as: Emperor, Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1998

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