Seiko Cal. 5668 - 307

The Seiko 5668-307 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-848ba574bb3b]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1970

Related Models

• Seiko 6613-762
• Seiko 6693-854
• Seiko 7141-377
• Seiko 7035-579
• Seiko 6373-570
• Seiko 5226-815
• Seiko 6327-286
• Seiko 5611-685
• Seiko 5671-257
• Seiko 6658-311
• Seiko 4491-255
• Seiko 7013-160