Seiko Cal. 5698 - 640

Seiko 5698-640

The 5698-640 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5698 caliber with 24j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-273cb9b34f72]

Also known as: Bullhead

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
36mm
Case Thickness
8.9mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
White
Jewels
24j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1984

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