Seiko Cal. 3891 - 359

This Hand-Winding model from 1966 features a 40mm Hardlex-Coated Steel case. It features a White dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-1470b1232ca4]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1966

Related Models

• Seiko 4491-401
• Seiko 7111-224
• Seiko 5236-607
• Seiko 6113-436
• Seiko 6678-498
• Seiko 4476-171
• Seiko 3843-932
• Seiko 4421-906
• Seiko 5227-931
• Seiko 4528-256
• Seiko 4424-543
• Seiko 6131-778