Seiko Cal. 5638 - 445

Seiko 5638-445

The 5638-445 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5638 caliber with 30j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-9c03259f9f76]

Also known as: Monster, Rally

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
40mm
Case Thickness
10.9mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Navy
Jewels
30j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1984

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seikata-wm-9c03259f9f76