Seiko Cal. 7140 - 387

The Seiko 7140-387 represents an important milestone in Seiko's 1975 lineup. It features a White dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-c6499cebe1c4]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1975

Related Models

• Seiko 3810-892
• Seiko 6368-622
• Seiko 4528-530
• Seiko 7017-249
• Seiko 7166-443
• Seiko 6152-753
• Seiko 5685-929
• Seiko 3873-670
• Seiko 6329-188
• Seiko 6137-447
• Seiko 7134-318
• Seiko 5626-610