Seiko Cal. 5644 - 210

The 5644-210 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-2bd9e1111f0c]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1978

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