Seiko Cal. 3881 - 138

The 3881-138 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3881 caliber with 34j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-24d82441086c]

Also known as: Samurai, Shogun

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1976

Related Models

• Seiko 6215-744
• Seiko 6179-640
• Seiko 6387-181
• Seiko 7119-479
• Seiko 3824-469
• Seiko 6174-625
• Seiko 6276-686
• Seiko 0747-333
• Seiko 6352-637
• Seiko 7134-300
• Seiko 4579-799
• Seiko 4538-164