Seiko Cal. 7138 - 440

The Seiko 7138-440 represents an important milestone in Seiko's 1970 lineup. With its 19mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-fdaa568fde67]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1970

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