Seiko Cal. 7048 - 638

The Seiko 7048-638 represents an important milestone in Seiko's 1983 lineup. Powered by the 7048 caliber with 27j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-a9b7885beb89]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1983

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