Seiko Cal. 5630 - 644

The 5630-644 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-8b08523d8641]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1984

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