Seiko Cal. 5257 - 850

This Automatic model from 1982 features a 46mm Two-Tone case. It features a White dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-ff89b3d4f6e4]

Also known as: Helmet, Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1982

Related Models

• Seiko 5676-181
• Seiko 6198-142
• Seiko 7025-818
• Seiko 4426-731
• Seiko 6388-543
• Seiko 0773-109
• Seiko 5672-409
• Seiko 7010-270
• Seiko 6311-515
• Seiko 4465-311
• Seiko 6193-207
• Seiko 6191-985