Seiko Cal. 5637 - 623

Seiko 5637-623

The Seiko 5637-623 represents an important milestone in Seiko's 1983 lineup. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-f7a5d23096f1]

Also known as: Panda, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
15.0mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Black
Jewels
31j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1983

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