Seiko Cal. 0748 - 521

The 0748-521 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0748 caliber with 36j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-5650fa8c82e9]

Also known as: Helmet, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1994

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