Seiko Cal. 5639 - 905

The Seiko 5639-905 represents an important milestone in Seiko's 1973 lineup. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-14e7013ba144]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1973

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