Seiko Cal. 3872 - 221

This Solar model from 1975 features a 44mm Hardlex-Coated Steel case. Powered by the 3872 caliber with 29j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-56ffb746edec]

Also known as: Turtle, Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1975

Related Models

• Seiko 0782-116
• Seiko 4531-990
• Seiko 6320-710
• Seiko 7089-683
• Seiko 6195-708
• Seiko 5260-880
• Seiko 6677-641
• Seiko 4490-844
• Seiko 6658-780
• Seiko 7136-331
• Seiko 6621-495
• Seiko 3810-165