Seiko Cal. 5645 - 725

Seiko 5645-725

The 5645-725 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d979d205f1b7]

Also known as: Bellmatic, Arnie

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
40mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
21j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1968

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