Seiko Cal. 5251 - 409

This Spring Drive model from 1975 features a 37mm PVD Black case. With its 21mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-3b247e9a01f2]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1975

Related Models

• Seiko 7163-999
• Seiko 7177-768
• Seiko 6634-301
• Seiko 4428-137
• Seiko 4471-946
• Seiko 7058-142
• Seiko 6223-535
• Seiko 4448-302
• Seiko 4421-349
• Seiko 4415-896
• Seiko 6681-964
• Seiko 6126-565