Seiko Cal. 4513 - 344

The 4513-344 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4513 caliber with 21j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-24776e4059b8]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1976

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