Seiko Cal. 7181 - 747

This Spring Drive model from 1969 features a 46mm Two-Tone case. With its 21mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-db0cc70414e7]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1969

Related Models

• Seiko 5680-849
• Seiko 4521-694
• Seiko 0772-603
• Seiko 6142-235
• Seiko 7151-534
• Seiko 3827-272
• Seiko 4471-838
• Seiko 4454-690
• Seiko 6393-980
• Seiko 4496-814
• Seiko 0780-148
• Seiko 4418-206