Seiko Cal. 7187 - 240

The 7187-240 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-5818704aa2c1]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1973

Related Models

• Seiko 7085-310
• Seiko 0734-777
• Seiko 4484-651
• Seiko 4467-414
• Seiko 7160-261
• Seiko 3826-803
• Seiko 6652-326
• Seiko 6354-935
• Seiko 5639-907
• Seiko 6696-491
• Seiko 6193-735
• Seiko 7133-789