Seiko Cal. 5644 - 755

Released in 1975, the Cal. 5644 with design code 755 was part of Seiko's domestic market collection. With its 19mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-37b915ee9bb4]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1975

Related Models

• Seiko 5658-320
• Seiko 3878-850
• Seiko 4560-313
• Seiko 4493-999
• Seiko 6197-170
• Seiko 3876-290
• Seiko 4513-205
• Seiko 7059-330
• Seiko 5227-647
• Seiko 5284-817
• Seiko 5641-610
• Seiko 0742-383