Seiko Cal. 7180 - 639

The Seiko 7180-639 represents an important milestone in Seiko's 1987 lineup. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-455904461e6c]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1987

Related Models

• Seiko 5666-922
• Seiko 6211-532
• Seiko 7159-801
• Seiko 6163-181
• Seiko 5210-290
• Seiko 6331-743
• Seiko 7012-838
• Seiko 5694-743
• Seiko 4535-195
• Seiko 0715-686
• Seiko 6295-990
• Seiko 4576-889