Seiko Cal. 7048 - 100

The 7048-100 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7048 caliber with 30j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-61ac337d6f79]

Also known as: Monster, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1976

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