Seiko Cal. 3856 - 577

The Seiko 3856-577 represents an important milestone in Seiko's 1971 lineup. It features a Navy dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-d89872ed8225]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1971

Related Models

• Seiko 4491-946
• Seiko 0797-208
• Seiko 5675-289
• Seiko 4472-337
• Seiko 5678-977
• Seiko 7147-236
• Seiko 6635-676
• Seiko 5229-658
• Seiko 6616-449
• Seiko 4419-311
• Seiko 4462-642
• Seiko 6397-392