Seiko Cal. 5613 - 237

Released in 1971, the Cal. 5613 with design code 237 was part of Seiko's domestic market collection. Powered by the 5613 caliber with 33j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-660dd5ba1112]

Also known as: Shogun, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1971

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