Seiko Cal. 3854 - 856

Released in 1969, the Cal. 3854 with design code 856 was part of Seiko's domestic market collection. Powered by the 3854 caliber with 31j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-df8ed240121c]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1969

Related Models

• Seiko 0773-430
• Seiko 5696-954
• Seiko 5235-784
• Seiko 5612-611
• Seiko 5646-408
• Seiko 0756-806
• Seiko 6237-799
• Seiko 4519-471
• Seiko 4534-898
• Seiko 5677-231
• Seiko 7135-471
• Seiko 5235-276