Seiko Cal. 3877 - 931

The 3877-931 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3877 caliber with 24j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-fca930daa5f1]

Also known as: Tuna, Pogue

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1979

Related Models

• Seiko 4574-628
• Seiko 4596-669
• Seiko 4553-942
• Seiko 6676-704
• Seiko 6148-141
• Seiko 6251-355
• Seiko 6256-568
• Seiko 3835-616
• Seiko 7197-552
• Seiko 6370-922
• Seiko 5634-935
• Seiko 6253-131