Seiko Cal. 7139 - 378

The Seiko 7139-378 represents an important milestone in Seiko's 1983 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-38c3cc9bcbb7]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1983

Related Models

• Seiko 3859-864
• Seiko 6196-401
• Seiko 7067-365
• Seiko 6623-875
• Seiko 6213-509
• Seiko 6136-188
• Seiko 4578-537
• Seiko 3815-209
• Seiko 3826-506
• Seiko 7177-444
• Seiko 3830-254
• Seiko 6349-421