Seiko Cal. 3860 - 557

The Seiko 3860-557 represents an important milestone in Seiko's 1990 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-2cf326b803c5]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1990

Related Models

• Seiko 6390-116
• Seiko 5643-455
• Seiko 5227-809
• Seiko 5643-923
• Seiko 5636-360
• Seiko 4541-837
• Seiko 7081-555
• Seiko 4417-439
• Seiko 6668-666
• Seiko 7162-848
• Seiko 6367-569
• Seiko 4472-400