Seiko Cal. 5644 - 850

Seiko 5644-850

The 5644-850 is a sought-after Kinetic piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-7f13605c9df2]

Also known as: Helmet, Bellmatic

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
36mm
Case Thickness
13.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
120m
Dial Color
Champagne
Jewels
35j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1965

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