Seiko Cal. 3877 - 346

The Seiko 3877-346 represents an important milestone in Seiko's 1971 lineup. Powered by the 3877 caliber with 34j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-2bef8598c411]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1971

Related Models

• Seiko 6181-978
• Seiko 5646-882
• Seiko 4421-811
• Seiko 0710-363
• Seiko 5220-820
• Seiko 5676-808
• Seiko 0780-829
• Seiko 5673-231
• Seiko 4532-772
• Seiko 6667-633
• Seiko 3847-534
• Seiko 4567-682