Seiko Cal. 4537 - 613

The 4537-613 is a sought-after Solar piece from Seiko's golden era. Powered by the 4537 caliber with 21j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-4ea9435156c2]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1974

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