Seiko Cal. 7138 - 488

The 7138-488 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-7fc16dcc64ce]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1983

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