Seiko Cal. 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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