Seiko Cal. 7138 - 578

The Seiko 7138-578 represents an important milestone in Seiko's 1969 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-4c11dc379cb4]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1969

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