Seiko Cal. 5639 - 246

The Seiko 5639-246 represents an important milestone in Seiko's 1966 lineup. It features a Silver dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-32ed3b3b0093]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1966

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