Seiko Cal. 5687 - 146

Released in 1970, the Cal. 5687 with design code 146 was part of Seiko's domestic market collection. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-fbd7cac490bd]

Also known as: Bullhead, UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1970

Related Models

• Seiko 6248-168
• Seiko 7188-755
• Seiko 3890-842
• Seiko 4560-684
• Seiko 7084-421
• Seiko 4588-446
• Seiko 0736-430
• Seiko 7182-733
• Seiko 5259-286
• Seiko 7086-926
• Seiko 3866-961
• Seiko 3847-734