Seiko Cal. 5212 - 400

The 5212-400 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5212 caliber with 23j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-0ac135267943]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1965

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