Seiko Cal. 5677 - 257

The Seiko 5677-257 represents an important milestone in Seiko's 1967 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-22986cbac734]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1967

Related Models

• Seiko 4547-246
• Seiko 5213-668
• Seiko 6323-206
• Seiko 5275-135
• Seiko 3847-374
• Seiko 6147-779
• Seiko 4437-458
• Seiko 7175-769
• Seiko 3887-670
• Seiko 6326-422
• Seiko 7071-915
• Seiko 6364-986