Seiko Cal. 3870 - 300

The Seiko 3870-300 represents an important milestone in Seiko's 1982 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f3d22bb4a55f]

Also known as: Shogun, Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1982

Related Models

• Seiko 4495-415
• Seiko 7183-156
• Seiko 7072-790
• Seiko 7140-297
• Seiko 5663-509
• Seiko 6659-575
• Seiko 7023-570
• Seiko 6633-675
• Seiko 5220-267
• Seiko 6245-733
• Seiko 6625-819
• Seiko 0717-763