Seiko Cal. 4437 - 181

This Solar model from 1975 features a 36mm Stainless Steel case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-b337e5b413f2]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1975

Related Models

• Seiko 5228-505
• Seiko 5671-289
• Seiko 0724-684
• Seiko 3867-740
• Seiko 7132-790
• Seiko 6215-745
• Seiko 7169-450
• Seiko 0783-914
• Seiko 5628-325
• Seiko 6384-932
• Seiko 7129-222
• Seiko 5270-303