Seiko Cal. 3839 - 877

This Spring Drive model from 1973 features a 45mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-d7fefa789d5b]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1973

Related Models

• Seiko 6317-463
• Seiko 6211-265
• Seiko 5220-198
• Seiko 6220-396
• Seiko 0762-288
• Seiko 7195-508
• Seiko 0785-542
• Seiko 6131-421
• Seiko 7077-728
• Seiko 4412-412
• Seiko 6675-758
• Seiko 6257-496