Seiko Cal. 4537 - 498

The 4537-498 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4537 caliber with 17j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-6171e074387f]

Also known as: Sumo, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1972

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