Seiko Cal. 6630 - 316

The Seiko 6630-316 represents an important milestone in Seiko's 1988 lineup. It features a Green dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-a42f32e2c3bc]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1988

Related Models

• Seiko 5280-769
• Seiko 3859-550
• Seiko 5679-562
• Seiko 5258-332
• Seiko 7019-440
• Seiko 7052-167
• Seiko 4573-772
• Seiko 4578-830
• Seiko 6383-856
• Seiko 3882-753
• Seiko 0736-642
• Seiko 5272-949