Seiko Cal. 4537 - 340

Seiko 4537-340

The 4537-340 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4537 caliber with 28j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-6a84b5d580d6]

Also known as: Sportsmatic

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
37mm
Case Thickness
14.7mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Navy
Jewels
28j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1989

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