Seiko Cal. 6156 - 371

The 6156-371 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-5a78945b7dc8]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1975

Related Models

• Seiko 6339-606
• Seiko 5651-825
• Seiko 6359-952
• Seiko 6647-501
• Seiko 6338-771
• Seiko 3861-924
• Seiko 4512-496
• Seiko 7070-222
• Seiko 6249-143
• Seiko 6143-729
• Seiko 7052-396
• Seiko 6352-816