Seiko Cal. 0725 - 424

The 0725-424 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0725 caliber with 28j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-bcd90376dde2]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1985

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