Seiko Cal. 3815 - 440

Released in 1974, the Cal. 3815 with design code 440 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-b1dd380ae7d1]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1974

Related Models

• Seiko 0725-408
• Seiko 6191-913
• Seiko 5245-856
• Seiko 7098-934
• Seiko 7121-983
• Seiko 5661-482
• Seiko 7088-804
• Seiko 5638-572
• Seiko 6397-434
• Seiko 5279-439
• Seiko 6371-480
• Seiko 4585-430