Seiko Cal. 5644 - 746

The Seiko 5644-746 represents an important milestone in Seiko's 1989 lineup. It features a Black dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-4d3733ae8984]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1989

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