Seiko Cal. 5271 - 157

This Spring Drive model from 1979 features a 39mm Two-Tone case. It features a Green dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-232f261000f3]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1979

Related Models

• Seiko 7061-607
• Seiko 5645-992
• Seiko 6636-591
• Seiko 5648-784
• Seiko 5612-503
• Seiko 5230-294
• Seiko 0778-634
• Seiko 5288-959
• Seiko 6175-140
• Seiko 6136-978
• Seiko 6347-755
• Seiko 4581-503