Seiko Cal. 5644 - 830

Seiko 5644-830

The 5644-830 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-30d67a0529b3]

Also known as: Monster, UFO

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
37mm
Case Thickness
15.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1994

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