Seiko Cal. 7143 - 248

The Seiko 7143-248 represents an important milestone in Seiko's 1986 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-8cb92e02b125]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1986

Related Models

• Seiko 6351-961
• Seiko 7119-224
• Seiko 6273-877
• Seiko 0785-340
• Seiko 7187-468
• Seiko 6163-496
• Seiko 3834-226
• Seiko 5649-729
• Seiko 4598-501
• Seiko 5293-646
• Seiko 6160-848
• Seiko 4475-176