Seiko Cal. 5643 - 681

The Seiko 5643-681 represents an important milestone in Seiko's 1985 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-ffc78edad139]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1985

Related Models

• Seiko 6280-142
• Seiko 7194-160
• Seiko 4598-673
• Seiko 6247-897
• Seiko 0730-771
• Seiko 6319-832
• Seiko 6241-944
• Seiko 5658-700
• Seiko 5657-495
• Seiko 4562-340
• Seiko 6314-550
• Seiko 7095-869